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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace Elastica\Test\Processor;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Elastica\Bulk;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Elastica\Document;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Elastica\Processor\DateProcessor;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Elastica\Test\BasePipeline as BasePipelineTest;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @internal  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                 */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                class DateProcessorTest extends BasePipelineTest  | 
            
            
                                                                        
                            
            
                                    
            
            
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                { | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @group unit  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function testDate(): void  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $processor = new DateProcessor('initial_date', ['dd/MM/yyyy hh:mm:ss']); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $expected = [  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'date' => [  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                'field' => 'initial_date',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                'formats' => ['dd/MM/yyyy hh:mm:ss'],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            ],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        ];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->assertEquals($expected, $processor->toArray());  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $processor = new DateProcessor('initial_date', ['dd/MM/yyyy hh:mm:ss', 'ISO8601', 'UNIX', 'UNIX_MS']); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $expected = [  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'date' => [  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                'field' => 'initial_date',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                'formats' => ['dd/MM/yyyy hh:mm:ss', 'ISO8601', 'UNIX', 'UNIX_MS'],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            ],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        ];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->assertEquals($expected, $processor->toArray());  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @group unit  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function testDateWithNonDefaultOptions(): void  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $processor = new DateProcessor('initial_date', ['dd/MM/yyyy hh:mm:ss', 'ISO8601', 'UNIX', 'UNIX_MS']); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $processor->setTargetField('timestamp'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $processor->setTimezone('Europe/Rome'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $processor->setLocale('ITALIAN'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $expected = [  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'date' => [  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                'field' => 'initial_date',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                'formats' => ['dd/MM/yyyy hh:mm:ss', 'ISO8601', 'UNIX', 'UNIX_MS'],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                'target_field' => 'timestamp',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                'timezone' => 'Europe/Rome',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                'locale' => 'ITALIAN',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            ],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        ];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->assertEquals($expected, $processor->toArray());  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @group functional  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function testDateField(): void  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $date = new DateProcessor('date_field', ['yyyy dd MM hh:mm:ss']); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $date->setTargetField('date_parsed'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $date->setTimezone('Europe/Rome'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $date->setLocale('IT'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $pipeline = $this->_createPipeline('my_custom_pipeline', 'pipeline for Date'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $pipeline->addProcessor($date)->create();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $index = $this->_createIndex();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        // Add document to normal index  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $doc1 = new Document(null, ['date_field' => '2010 12 06 11:05:15']);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $bulk = new Bulk($index->getClient());  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $bulk->setIndex($index);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $bulk->addDocument($doc1);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $bulk->setRequestParam('pipeline', 'my_custom_pipeline'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $bulk->send();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $index->refresh();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $result = $index->search('*'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->assertCount(1, $result->getResults());  | 
            
                            
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                        $results = $result->getResults();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->assertEquals('2010-06-12T00:00:00.000+02:00', ($results[0]->getHit())['_source']['date_parsed']); | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    }  | 
            
            
                                                        
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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It seems like the type of the argument is not accepted by the function/method which you are calling.
In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug.
We suggest to add an explicit type cast like in the following example: